Second time around David Weir made winning gold look even easier. He needed a sprint finish to win the 5,000m title on Sunday but he had pretty much wrapped up the 1500m gold by the time the bell rang to signal the final lap. Weir had been running in second throughout, holding his line in lane two to try to stop anyone overtaking him.

With 350m to go he moved up into first. Such is his speed and strength no one was going to pass him. With the crowd roaring him on, he crossed the line in 3min 12.09sec, ahead of Thailand's Prawat Wahoram and South Korea's Kim Gyu-dae.

The gold paint celebrating his 5,000m win was still drying on the postbox in his home town of Wallington. Weir has set himself a Sisyphean schedule at these Games. Each day he wakes and has to start rolling his wheels around the track again, in pursuit of another gold.

He will be back at the stadium on Wednesday morning, taking to the start line for the 800m having had only a few hours' sleep to recover from the night's exertions. It beggars belief that after all that he will end his Games, on Sunday, by trying to win the marathon title too. "I am glad I have got two days to rest before that," he said drily. The man is a phenomenon. No wonder his team-mates have come up with a special song, reworking Warren Zevon's old hit Werewolves of London in his tribute.

The victory means that Weir is now 2-0 up in the fierce three-way rivalry at the top of the most competitive class in Paralympic track and field, T54 wheelchair racing. The two men he is duelling with did not even feature. Switzerland's Marcel Hug, who holds all four world records at 800m, 1500m, 5,000m and 10,000m, was fourth. And Australia's Kurt Fearnley, who has nine Paralympic medals, was seventh.

In this form Weir will be favourite to beat them both and win the 800m title too. He says it will be a tactical affair but reckons he can win it whichever way they race it. "I felt so relaxed today, I wasn't bouncing off the walls ready to race. I saved a lot of energy. I was very calm in warm-up and I did a few quicker laps in warm-up, and I just thought, 'I have got loads in the tank.' My speed was so good at the moment. I thought I went a little bit too early but all the endurance and speed work I have done in the last 12 weeks showed in that finish." The 1500m, he said, has always been the blue riband event, the one he has wanted to win ever since he first saw it being raced at Barcelona in 1992.

The truth is, though, that Weir does not seem to favour one race over any other. He just wants to win everything. "I haven't just come here to win on the track, I have come to win on the road as well." The battle with Fearnley on Sunday could be the most special race of all.

Fearnley has the edge. He has raced 43 marathons, won 31 of them and been on the podium for another 10. But then Weir has won the London Marathon six times and beat Hug by a single second in the 2012 race.

Fearnley has preferred to concentrate his energies on preparing for these Games. But he has won the last two Paralympic marathons. In Athens in 2004 he took gold despite the fact that his wheelchair got a puncture 5km from the finish. He just ran on his rims for the rest of the race. He is as tough as they come.

In 2009 Fearnley climbed the 1,504 steps of Sydney Tower on his hands.

He took them two at a time, and finished in a little under 20 minutes.

Two months later he dragged himself over the Kokoda Trail through the mountains of Papua New Guinea. It took him 10 days. It takes most people 12 to do it on foot. On the flight back to Australia the airline he was using forced him to check in his wheelchair and tried to get him to use one of their own as a replacement. Offended, he refused, and crawled through the airport on his hands. The backlash caused the airline to revise its disability policies completely.

Weir and Hug are just as uncompromising in their own ways. Weir's impairment has never stopped him doing what he wanted to do. All three were born with their impairments. Hug, who goes by the nickname of the Silver Bullet, has spina bifida. Fearnley has lumbar sacral agenesis and was born without the lower portion of his spine. Weir was born with a spinal cord transection. It is, in each case, one of the least remarkable things about them.

None sees his disability as something he has had to overcome, or struggle with, none wants to be admired for the mere fact that he has had to cope with his impairment.

Hug says that his major frustration in life is "being admired as disabled person and not respected as sportsman". Each of them just wants to be known as the best at what they do. But for any one of them to do that, he will need to beat the other two and right now neither Fearnley nor Hug looks capable of beating the Weirwolf.